添加设置UI

resource/icons/down-small.svg

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+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   width="15"
+   height="10"
+   viewBox="0 0 3.9687499 2.6458334"
+   version="1.1"
+   id="svg5"
+   inkscape:version="1.1.1 (3bf5ae0d25, 2021-09-20, custom)"
+   sodipodi:docname="down-small.svg"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <sodipodi:namedview
+     id="namedview7"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     inkscape:document-units="mm"
+     showgrid="true"
+     units="px"
+     inkscape:zoom="13.001718"
+     inkscape:cx="2.268931"
+     inkscape:cy="17.036211"
+     inkscape:window-width="1440"
+     inkscape:window-height="830"
+     inkscape:window-x="0"
+     inkscape:window-y="0"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="layer1"
+     width="8px">
+    <inkscape:grid
+       type="xygrid"
+       id="grid136" />
+  </sodipodi:namedview>
+  <defs
+     id="defs2" />
+  <g
+     inkscape:label="Layer 1"
+     inkscape:groupmode="layer"
+     id="layer1">
+    <path
+       style="fill:none;fill-opacity:1;stroke:#808080;stroke-width:0.39;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;stroke-miterlimit:4;stroke-dasharray:none"
+       d="M 0.55647555,0.79375 2.0043655,2.0149264 3.4522556,0.79375"
+       id="path138"
+       sodipodi:nodetypes="ccc" />
+  </g>
+</svg>

resource/icons/up-small.svg

@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   width="15"
+   height="10"
+   viewBox="0 0 3.9687499 2.6458334"
+   version="1.1"
+   id="svg5"
+   inkscape:version="1.1.1 (3bf5ae0d25, 2021-09-20, custom)"
+   sodipodi:docname="up-small.svg"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <sodipodi:namedview
+     id="namedview7"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     inkscape:document-units="mm"
+     showgrid="true"
+     units="px"
+     inkscape:zoom="13.001718"
+     inkscape:cx="2.268931"
+     inkscape:cy="14.267346"
+     inkscape:window-width="1440"
+     inkscape:window-height="830"
+     inkscape:window-x="0"
+     inkscape:window-y="0"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="layer1"
+     width="8px">
+    <inkscape:grid
+       type="xygrid"
+       id="grid136" />
+  </sodipodi:namedview>
+  <defs
+     id="defs2" />
+  <g
+     inkscape:label="Layer 1"
+     inkscape:groupmode="layer"
+     id="layer1">
+    <path
+       style="fill:none;fill-opacity:1;stroke:#808080;stroke-width:0.39;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
+       d="M 3.4522556,1.9581625 2.0043656,0.73698623 0.55647554,1.9581625"
+       id="path138"
+       sodipodi:nodetypes="ccc" />
+  </g>
+</svg>